import pandas as pd

data = {
    "姓名":['小火龙','杰尼龟','皮卡丘'],
    '性别':['男','男','女'],
    '年龄':[10,30,23]
}

df = pd.DataFrame(data,columns=["年龄","性别","姓名"])

print(df.drop('年龄',axis=1))